Android set system time and date method

First, set the system time

  
 

   
  

  
static void setTime(Context context, int hourOfDay, int minute) {
   
  

  
 Calendar c = Calendar.getInstance();
   
  

  

   
  

  
 c.set(Calendar.HOUR_OF_DAY, hourOfDay);
   
  

  
 c.set(Calendar.MINUTE, minute);
   
  

  
 c.set(Calendar.SECOND, 0);
   
  

  
 c.set(Calendar.MILLISECOND, 0);
   
  

  
 long when = c.getTimeInMillis();
   
  

  

   
  

  
 /span>if     ( when  /   1000    <    integer   max_value     {  
   
  

  
 ((AlarmManager) context.getSystemService(Context.ALARM_SERVICE)).setTime(when);
   
  

  
 }
   
  

  
 }
  
 

Second, set the system date

  
 

   
  

  
static    void   SetDate   ( context   Context     int   year     int   month     int   day  )    {  
   
  

  
 Calendar c = Calendar.getInstance();
   
  

  

   
  

  
 c.set(Calendar.YEAR, year);
   
  

  
 c.set(Calendar.MONTH, month);
   
  

  
 c.set(Calendar.DAY_OF_MONTH, day);
   
  

  
 long when = c.getTimeInMillis();
   
  

  

   
  

  
 /span>if     ( when  /   1000    <    integer   max_value     {  
   
  

  
 ((AlarmManager) context.getSystemService(Context.ALARM_SERVICE)).setTime(when);
   
  

  
 }
   
  

  
 }
  
 

You also need to add the relevant permissions

 
   
  

  
    
   
 <uses-permission android:name="android.permission.SET_TIME" />
 
   
  

From for notes (Wiz)

Android set system time and date method